import 'package:flutter/material.dart';

///十六进制颜色
class ColorsUtil {
  ///十六进制颜色
  ///hex : 0xffffff
  ///alpha : 0 ~ 1.0
  static Color hexColor (int hex, {double alpha = 1}) {
    if (alpha < 0){
      alpha = 0;
    }else if (alpha > 1){
      alpha = 1;
    }
    return Color.fromRGBO((hex & 0xFF0000) >> 16 ,
        (hex & 0x00FF00) >> 8,
        (hex & 0x0000FF) >> 0,
        alpha);
  }
}